kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]

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Add 6 simple mangle testcases that mess with the ucontext_t from within
the signal handler, trying to toggle PSTATE mode bits to trick the system
into switching to EL1/EL2/EL3 using both SP_EL0(t) and SP_ELx(h).
Expects SIGSEGV on test PASS.

Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Cristian Marussi 2019-10-25 18:57:09 +01:00 • committed by Catalin Marinas

parent 0fc89f08df

commit c282098704

7 changed files with 118 additions and 0 deletions

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15

tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1h.c

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tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1t.c

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tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2h.c

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tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2t.c

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tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3h.c

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tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3t.c

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tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_template.h

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